[Bug dynamic-link/14341] Dynamic linker crash when DT_JMPREL and DT_REL{,A} are not contiguous

["carlos_odonell at mentor dot com" <sourceware-bugzilla@sourceware.org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=14341

--- Comment #4 from Carlos O'Donell <carlos_odonell at mentor dot com> 2012-07-09 19:20:55 UTC ---
(In reply to comment #3)
> (In reply to comment #2)
> > Can you please use the recently released 2.16?
> > 
> > Can you please update Version in this issue to reflect the true version you
> > areusing.
> > 
> > We already knew about this failure and fixed it on April 10th as part of:
> > http://sourceware.org/bugzilla/show_bug.cgi?id=13967
> > 
> > I may have missed something, but I expected this to be fixed.
> 
> I'm using the version that's including that fix, but it still crashes.
> 
> The following fixes it (which, in practice, mostly reverts
> 96154cd892c614f13f32996ce75df1442641fb5b) :
> --- glibc-2.16.0/elf/dynamic-link.h    2012-06-30 21:12:34.000000000 +0200
> +++ glibc-2.16.0.fixed/elf/dynamic-link.h    2012-07-09 10:35:50.579168312
> +0200
> @@ -280,7 +280,8 @@
>                                            \
>      if (ranges[0].start + ranges[0].size == (start + size))              \
>        ranges[0].size -= size;                          \
> -    if (! ELF_DURING_STARTUP && ((do_lazy) || ranges[0].size == 0))          \
> +    if ((! ELF_DURING_STARTUP && ((do_lazy) || ranges[0].size == 0)) ||   \
> +            (ranges[0].start + ranges[0].size != start))                  \
>        {                                      \
>          ranges[1].start = start;                          \
>          ranges[1].size = size;                          \

Please attach a copy of the firefox binary, or a testcase binary run through
elfhack that crashes using 2.16. I'd like to see what the layout looks like in
the binary.

We are committed to fixing this, but I want to understand what is different
about your binary.

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